BW SENSING LoRaWAN LR-WS2000 Manuale utente

LoRaWAN LR-WS2000

High-precision wireless inclinometer

Technical Manual

V3.0

Bewis Sensing Technology LLC www.bwsensing.com Tel：+86 18921292620

LoRaWAN LR-WS2000

High-precision wireless inclinometer

●Working frequency 868MHz

●Solar charging orexternal special charger

charging

●Support data transparent transmission

●Power output

●Automatic sleep

LoRaWAN LR-WS2000 high-precision wireless inclinometer is designed for

structural health monitoring. It use rechargeable lithium battery, can be used for up to 5 years

on a single charge (In condition of sending data once a day) it can be easily charged, with solar

panel. With remote control and management functions, data can enter the cloud through the

LoRaWAN gateway (optional).

All modules are designed with ultra-low power consumption, the sleep current is lower than 4μA, and

have timed wake-up and motion detective wake-up functions. Working temperature is -25 ℃ ～ +85 ℃.

●Accuracy: 0.001°

●LoRaWAN Wireless network, star network

●Can be used for up to5years once charged

●Resolution 0.0007°

●Dualaxis inclination measurement, range ±30°

●More user-friendly design, more in line with

actual deployment requirements on site

●Small size, light weight, easyinstallation

●Connected to the Internet through a data

LoRaWAN gateway,and data is transmitted to the

cloud

●Wireless signal interference monitoring

●Temperature output

●Timed wakeup, exercise wakeup

Note: * means under laboratory conditions

Introduction

Main Feature

Function Feature

Bewis Sensing Technology LLC www.bwsensing.com Tel：+86 18921292620

Connector Aviation connector

Protection level IP67

Shell material Magnesium aluminum alloy anodizing

Installation Three M4 screws

Performance Index

Mechanical Index

Application

●

Dangerous housing monitoring

●

Bridge tower inclination measurement

●Dam monitoring

●

Slope disaster prevention

●

Ancient building protection monitoring

●Tunnel monitoring

●

Foundation pit monitoring

●

Tower tilt monitoring

Product Feature

Measuring range(°)

Measuring axis

Accuracy(°)

Resolution(°)

Cross-axis error(°)

Output frequency（Hz）

Auto-sleep mode

Mean Time Between Failure

Electromagnetic

compatibility

Insulation resistance

Impact-resistant

Size（mm）

Accordance to GBT17626

≥100 MΩ

2000g，0.5ms，3 Times/axis

L109*W65*H53

640（±10）

≥90000 hours

Completely stationary

25℃

Up to 50

Support

Timed Wake-up

Movement Detected Wake-up

Support

Weight（g）

Zero temperature

drift(°/℃)

At room temperature

-40〜+85℃

0~30

X-Y

0.001

0.0007

0.001

±0.0007

LoRaWAN LR-WS2000

High-precision wireless inclinometer

Bewis Sensing Technology LLC www.bwsensing.com Tel：+86 18921292620

Electrical Index

Power connector

Power voltage 4.2VDC

Recharging current 1000mA

Working current 100mA (Peak)

Stand-by current 4μA

Battery capacity 6000mAH

Communication distance Maximum: 5Km

Limited Data Every frame 20Byte

Reliability

The mean time between failures (MTBF) is not less than

50,000 hours

Ultra-low power consumption design, including automatic

sleep mode, timing wake-up, sports wake-up

Network topology

Resolution: The smallest change value of the measured value that the sensor can detect and

distinguish within the measurement range.

Accuracy: The root mean square error of the actual angle and the sensor measuring angle for

multiple (≥16 times) measurements.

LoRaWAN gateway

LoRaWAN

LoRaWAN LR-WS2000

High-precision wireless inclinometer

Bewis Sensing Technology LLC www.bwsensing.com Tel：+86 18921292620

Aviation plug wiring definition

Wire color

function

RED BLACK GREEN YELLOW

1345

4.2V GND ground Receive RXD Send TXD

Package product size

Product size：L109*W65*H53（mm），the length and width may be a 1mm error, please refer

to the actual product

Electrical Interface

LoRaWAN LR-WS2000

High-precision wireless inclinometer

Bewis Sensing Technology LLC www.bwsensing.com Tel：+86 18921292620

Installation

This series of products can only be installed vertically (pendulum type measurement), not

horizontally. The correct installation method can avoid measurement errors. The following points

should be done when installing the sensor:

First of all, make sure that the sensor mounting surface is completely close to the measured

surface, and the measured surface should be as level as possible, and there should be no included

angles as shown in Figure A and Figure C. The correct installation method is shown in Figure B

and Figure D.

Secondly, the bottom line of the sensor and the axis of the measured object cannot have an

angle as shown in Figure E, and the bottom line of the sensor should be kept parallel or orthogonal

to the axis of rotation of the measured object during installation. This product can be installed

horizontally or vertically (vertical installation needs to be customized), and the correct

installation method is shown in Figure F.

Finally, the mounting surface of the sensor and the surface to be measured must be

tightly fixed, smooth in contact, and stable in rotation, and measurement errors due to

acceleration and vibration must be avoided.

the measured surface

uneven surface

generates the

angle

the measured surface

C D

the measured surface the measured surface

uneven surface

generates the

angle

LoRaWAN LR-WS2000

High-precision wireless inclinometer

Bewis Sensing Technology LLC www.bwsensing.com Tel：+86 18921292620

●Enterprise Quality System Standard: ISO9001:2015 Standard (Certificate

No.064-21-Q-3290-RO-S)

●CE certification (certificate number: M.2019.103. U Y1151)

●ROHS (certificate Number: G 190930099)

●GB/T 191 SJ 20873-2003 General specification for inclinometer and level

●GBT 18459-2001 The calculation method of the main static performance index of the

sensor

●JJF 1059.1-2012 Evaluation and expression of measurement uncertainty

●GBT 14412-2005 Mechanical vibration and shock Mechanical installation of accelerometer

●GJB 450A-2004 General requirements for equipment reliability

●GJB 909A Quality control of key parts and important parts

●GJB899 Reliability appraisal and acceptance test

●GJB150-3A High temperature test

●GJB150-4A Low temperature test

●GJB150-8A Rain test

●GJB150-12A Sand and dust experiment

●GJB150-16A Vibration test

●GJB150-18A Impact test

●GJB150-23A Tilt and rock test

●GB/T 17626-3A Radio frequency electromagnetic field radiation immunity test

●GB/T 17626-5A Surge (impact) immunity test

●GB/T 17626-8A Power frequency magnetic field immunity test

●GB/T 17626-11A Immunity to voltage dips, short-term interruptions and voltage changes

●GB/T 2423.22-2012 Environmental Test Part 2: Test Method Test N: Temperature Change

(IEC 60068-2-14:2009, IDT)

●GB/T 10125-2012 Artificial atmosphere corrosion test Salt spray test (ISO 9227:2006,IDT)

Executive standard

LoRaWAN LR-WS2000

High-precision wireless inclinometer

Wuxi Bewis Sensing Technology LLC

Add：Building 30, NO. 58, Xiuxi Road, Binhu District,

Wuxi City, Jiangsu Province, China

Tel：+86 18921292620

Mail：[email protected]

Web：www.bwsensing.com

LoRaWAN LR-WS2000

High-precision wireless inclinometer

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